Got very confused going after some texts there for Translation texts, e.g. Reporting items are on the Sample COC tab, some duplicates etc. Will gladly move and order them in the same exercise if not too complex or risky

This is not difficult. If you want to change the tab where a given field (and text) is being displayed, just open bika_setup.py, look for the field you want to “move” and change the value for the parameter schemata.